<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
  <script src="./data.js"></script>
  <style>
    .masonry{
      display: flex;
    }
    .column{
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 0 2px;
    }
    .item{
      margin-bottom: 5px;
      width: 100%;
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="masonry">
      <div class="column">
        <img class="item" v-for="(item) in data1" :src="item.img" alt="">
      </div>
      <div class="column">
        <img class="item" v-for="(item) in data2" :src="item.img" alt="">

      </div>
      <div class="column">
        <img class="item" v-for="(item) in data3" :src="item.img" alt="">

      </div>
    </div>
  </div>

  <script>
    const { createApp, ref, reactive } = Vue
    createApp({
      setup() {
        const images = ref(data)
        const data1 = ref([])
        const data2 = ref([])
        const data3 = ref([])


        let i = 0
        while (i < data.length) {
          data1.value.push(data[i++])
          if (i < data.length) {
            data2.value.push(data[i++])
          }
          if (i < data.length) {
            data3.value.push(data[i++])
          }
        }


        return {
          data1,
          data2,
          data3
        }
      }
    }).mount('#app')


  </script>  
</body>
</html>